Inmates at the Pelican Bay state prison have made artwork displayed at the nonprofit Barrios Unidos on Soquel Avenue in Santa Cruz. “Some draw beautiful women, others choose American Indians as their subject. And still others depict famous people: Mother Teresa, artist Frida Kahlo and revolutionary Che Guevara,” according to the Sentinel. When inmates were only allowed pens and pencils for tools, they got creative and made color from coffee, mustard, Skittles and M&M candies, the Sentinel reported.